Di box Lab Report Example | Topics and Well Written Essays - 500 words

Di box - Lab Report ExampleThe basic function was to modify the sound engineers to lay long lines of three core balanced cable mingled with musicians and the engineer, who might be seated at the far end of the venue. In rescript to send him proper and noiseless signals, unmatchable would require balanced lines with high impedance. But the electric guitar, bass guitar, electric keyboard or the drum work outputs are all unbalanced and low impedance outputs of around 50 kilo ohms. In order to convert it into impedances of around 3 kilo ohms, DI boxes are employed. They basically consist of an impedance matching transformer. A transformer consists of two coils the primary and the petty(a). The number of turns in each actually determines whether it is a step-up, a step-down or just an isolating transformer. Having a transformer also serves another very important purpose isolation between the input and output signals. This helps to keep the expensive musical instruments out of the way of damage by the invasion of unwanted electrical impulses such as an accidentally switched on phantom power in the admixture console. In DI boxes, however, a step-down transformer is used. The number of turns in the primary coil is more than in the secondary coil. Therefore lesser amount of current is induced in the secondary coil, resulting in a mic take output (around -30dBV), from a line level input (around -10dBV).